使用 Jedis Pool 时管道损坏

Question

我正在使用 Jedis 在 Redis 中执行大量插入/读取操作。Redis 服务器使用默认配置。当我开始使用几个线程时出现问题，例外情况是：

redis.clients.jedis.exceptions.JedisConnectionException：java.net.SocketException：管道quebrado（写入失败）

我已经搜索了很多关于这个问题的信息，但找不到原因或解决方案。我用来执行这些测试的代码如下：

public class RedisFacade {

private static RedisFacade instancia = null;
// Initialize the Connection
final JedisPoolConfig poolConfig = buildPoolConfig();
JedisPool pool = new JedisPool(poolConfig, "localhost");
Jedis jedis;
int i = 0;

private RedisFacade() {
}

public static RedisFacade getInstancia() {
    if (instancia == null) {
        instancia = new RedisFacade();
    }
    return instancia;
}

// retorna um cliente jedis da pool
public Jedis getDB() {
    if (jedis == null) {
        jedis = pool.getResource();
    }
    return jedis;
}

//inserting
public void insert(Document d) {
    String key = i + d.getString("date") + d.getString("time");
    String value = d.toString();
    this.getDB().set(key, value);
    i++;
}

//reading
public void read(String date, String time) {
    Object doc = this.getDB().get(i + date + time);
    i++;
    System.out.println(doc);
}

public void destroyPool() {
    this.pool.destroy();
}

private JedisPoolConfig buildPoolConfig() {
    final JedisPoolConfig poolConfig = new JedisPoolConfig();
    poolConfig.setMaxTotal(1100);
    poolConfig.setMaxIdle(16);
    poolConfig.setMinIdle(16);
    poolConfig.setTestOnBorrow(true);
    poolConfig.setTestOnReturn(true);
    poolConfig.setTestWhileIdle(true);poolConfig.setMinEvictableIdleTimeMillis(Duration.ofSeconds(60).toMillis());
    poolConfig.setTimeBetweenEvictionRunsMillis(Duration.ofSeconds(30).toMillis());
    poolConfig.setNumTestsPerEvictionRun(3);
    poolConfig.setBlockWhenExhausted(true);
    return poolConfig;
}}

Answer 1

在尝试实现新的构造函数、池和客户端的新配置之后，我尝试了一种简单的方法来解决问题：关闭从池中获取的资源。为此，我更改了以下代码：

public Jedis getDB() {
    jedis = pool.getResource();
    return jedis;
}

//cria um _id pra ser usado novamente quando for buscar os documentos
public void insert(Document d) {
    String key = "key" + i;
    String value = d.toString();
    Jedis jedis = this.getDB();
    jedis.set(key, value);
    jedis.close();
    i++;
}

//busca pelo _id
public void read() {
    Jedis jedis = this.getDB();
    Object doc = jedis.get("key" + i);
    jedis.close();
    i++;
    System.out.println(doc);
}

更改代码后，该服务开始按我的计划工作，因此我接受此作为解决方案。